Wheel



' 1,686,479 J. w. WHITE WHEEL Filed Sept. 2. 1922 By' f fb/W' Ilmy Patented Oct. 2, 1928.

Application filed September 2, 1922. `Serial` No. 585,952. I

This invention relates to an improvement in wheels and more particularly in wheels ofthe disc type and in the means Jfor demountably securing the rims to the wheel discs.

In such wheels it is essential that theV rim be easily and quickly demounted and 1n order to attain that result, the rim is held in lace by a clamping action, the rim being located between the periphery ofy the ydisc and any suitable fastening means bolted to the disc so that as the bolts are tightened the rim is clamped in place. The peripheral edge of the disc is iianged to engage one of '.15 the outer contours of the rim whilev the fastening means, either a ring or 'aseries of plates engage the other outer. contour. However, it

rim has a pronounced tendency to weave; that is to say, when any force causes the rim to move transversely of the wheel plane, the point of the rim diametricaly opposite that at which the force isV applie also moves in the same direction, while the between the first points move in the opposite direction. While such movement is commonly referred to as transverse to the wheel plane, a turning upon the the rim as a ulcrum also takes place there results a compound movement.

in such transverse movement, one edge ofeach portion will turn outwardly and the other inwardly relative to the media-n line oitherim. Such interaction in wheels made in accordance with the practice generally followed, will, of course, be transmitted thruy the disc flange and the fastening means to so. that` of sufficient strength to resist this rim weave as well as to support the lateral strains which arise in -travelling over .the.road. .The result of. this movement is to increase the fatigue 'of the disc metal at the hub. Because of' such strains,

the'diameter of the hub flange i's-limited.

The chief object of this invention isto rovide a dise wheel in which the rim weave is not transmitted to the wheel v`disc and more '6o particularly to provide in such wheel a dehas been determined that the points halfway l median line of Y Thus the vehicle and resist,v

mountable rim having a flange alon its median line on the inner side which ange is clamped between the disc and the fasten-- ing means. In other words, in place ofl the rigid clamping connection between the disc andthe Irim there isprovided a connection having substantially the action .of a ball and socket joint so that the weave of the rim is independent of the disc. A Vfurther object is to` provide adisc vwheel in which the periplieral unsprung weight is reduced which is simpler and can be made at a reduced cost and by the use of which the time of changing a demountable vrim is reduced and the ease nf performing such operation is increased. I l

.Another object of this invention is to pro# vide a demountable rim` having' along the median line, an inwardly projecting' bead. by which the rim can be mounted upon a wheel.l

Other objects will appear from a consideration of the following specification taken in connection with the accompanying draw- `ing which forms a part ,thereof and. in

which v Fig, 1 is a transverse section of the rim portion of a disc wheel embodying this invention showing a clamping ring which is held. in vposition by a series of bolts. 4 Fig. 2 is a similar view of another part of the rim portionof 'such wheel showing the relation of the valve stem to the other elements.

Fig. 3 is a similar view of another-part 85 of the rim'portion of such wheel showing the relation of the disc and clamping ringv .to the rim locking plate. the disc itself so that the disc must be made p Fig. 4 isa bottom plan view of that part of the rimshown inl Fig. 3. 90 Fig. '5 is a longitudinal section. of such part taken alongthe line l5-,5 of FigL 4; and Fig. 6 is a view similar .to Fig. l1 of a disc wheel in which a series of fastening clamps is used in place-'of a clamping ring.

Referring to the drawings, the reference numeral 10 is used to designate the disc of a disc wheel embodying one form of this invention. For urpose of illustration the form of disc s own in my zo-pending ap- 10o plication Ser. No. 569,384 has been selected,

12, is a bead, 13, that shown being of the V-shape. This bead, as will be set forth later, forms a shoulder by which the rim is clamped to lthe disc.

A clamping ring, 14, is secured by a series of bolts, 15, to the disc, 10, suitable blisters, 16, being formed in the disc on which the ring, 14, rests. The ring, 14, is approximately C-shaped in cross-section, its inner flange, 17, resting on the Iblisters, 16 and its outer flange, 18 which is somewhat shorter than the inner flange bearing against the bead, 13.

v At the periphery of the disc, 10, is formed a flange, 19, the connection portion, 20, being rounded. This portion, 20 also bears against the shoulder, 13 so that it is clamped between the disc, 10 and the clamping ring, 14. The radial portion 21 of'the disc is at approximately the median line of the Wheel so the line, 12, indicates the median line of the wheel and also the median line-of the rim. Thus, the rim is held in position upon the disc by the contacts of the portion, 20, of the disc, and the flange, 18 of the ring upon the bead 13. Since the contacting surfaces are both curved, it must follow that the rim is held upon two separated lines of con tact, which are adjacent to and equally distant from the median line, 12. Hence, the

main tendency of the rim to weave will take place without being transmitted to the disc, the rim being simply cradled between these circumferential lines ofv contact, and oscillated around thc-median line.

Since the radial portion, 21., of-the disc is at the median line, 12, of the wheel, it is slotted and pressed back at 22 to permit thevalve stem 23 of the tire to project radially thru the hole, 23, in 'the rim and to lie in the nfedian plane in front ofthe disc.v

When the parts are assembled, the lock nut is tightened against 22 and the ring, 14, Ato hold the stem in position. Thedisc, 10, is

also forced back at.24 so that the chuck of.

' of the rim with the di'sc but in order to provide further driving means, the portion, 20,

and ring 14 are notched at 25, and 26, see Fig. 3, to receive the locking plate, 27 The rim 11 is preferably of the split type, the ends 28 and 29, being connected in the usual manner by the plate 27, which is riveted to the end 28 and enters a slot, 3 0 in the end 29. As shown in Figs. 4 and 5, the bead 13 ends at each side of the plate, 27. In place `of a clamping ring, 14, a series of clamping lugs,37, held by bolts, 38 may be employed if desired. These lugs function in the same manner as the ring, 14, the spaces between them being insuiiicient to interfere with the weaving of the rim.

While certain embodiments have been shown and described, they were chosen for illustration only and it will'be understood that I am not limited thereby since other embodiments can be made without departing from the spirit and scope of this invention as set fort-h in the following claims.

Having thus set forth my invention what I claim as new and for which I desire the protection of Letters Patent is as follows:

1. A disc Wheel, comprising a wheel disc, a riin having an inwardly projecting bead adjacent the median line, a clamping ring, bolts for securing said ring to said disc, said disc having a curved portion, said bead be- -ing lbetween said portion and said ring and said portion and ring bearing against'the sides of said bead and clamping said bead between them along single lines of contact at opposite sides of the median line to affix said rim to said wheel, the bolts securing laidi ring to said disc being inward of said 2. In a disc wheel, a disc, the outer portion of which is within the median line of the wheel, arim having an internal bead integral therewith and at the median line t-hereof, and clamping means carried bv said disc and co-acting with. the peripheral face. thereof to engage said rim bead along' single lines of contact at opposite sides of lim vthe median line and hold said rim in place. l

3. A disc wheel comprising a wheel disc, a `rim and means for clamping said rim in positionupon said disc, said rim having a V shaped bead formed on its inner periphery adjacent the median line, said disc having at its periphery a flange connected .to they body'of the disc by a curved portion, said clamping means having a curved ange, the parts being so assembled that the rim bead is engaged by the curved portion of said disc and the curved flangeof said ring at opposite sides of thc-median line whereby since in cross section the engaged sides of the bead are straight while the engaging parts are curved the rim is supported upon two separated lines of contact.

4.A disc wheel comprising a wheel disc, a rim having an inner V shaped bead adja: cent the median line and means clamping www@ 3 said rim to said disc, said disc and clamping said bead being between said disc and said means so engaging said bead at opposite clamping means and said disc and means 10 sides of the median line as to permit a weavbearing against the sides of said bead along ing movement of said rim relative to said singlelines of contact at opposite sides of the 5 disc and clamping means. l median line to hold said rim upon said 5. A disc wheel, comprising a Wheel disc, wheel., l

a rim having an inwardly projectingbead In testimony whereof, l affix my si r attire, along its median line, and clamping means, JOHN W. W llTE., 

